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Communication: FOURTH PERIOD

A randomized 25 question test from a pool of 761 questions, good luck!
Which of the answers below best describes the effect that an extremely steep angle pitch has on light propagation in a fiber optic cable?
There are several fields in an Ethernet message frame structure. Which of the answers represent the total amount of fields in an Ethernet message frame?
Which error check method is best described as an industry standard fieldbus protocol?
The limits of a OUT parameter status field has several different classifications. Which of the classifications below can be described as the indication of a parameter under the LRV?
HMI networks are needed to expand or contract as required over their lifetime of use. Which of the networking types below will typically contain a high level of encryption andsecurity
There are several layers in the DCS architecture. Which of the levels below would have direct control over the alarming system?
The design and utilization of a SCADA system requires the approval of several layers of government. Which of the terms below would best be described as the framework for the integration of systems network layers?
Which of the terms below is best described as "losses resulting from the amount of bends in an installation."?
IPv4 network classes can also be defined by the IP address they use. Which of the answers corresponds best to the address in row "I"?
In the transmission control protocol validates that the destination has received the information packet sent. Which of the header components below is responsible for this verification?
The quality of a OUT parameter status field has several different classifications. Which of the classifications below can be described as the value may be useful, but of diminished quality?
The numerous tasks that are accomplished at the same time in a DCS, is a result of the configured software programs that it has . Which of the software programs below will governed by IEC-61804-2?
The OSI model describes how a network should be arranged. Which of the layers below defines the media access method and the message frame structure?
IPv4 network classes can also be defined by the IP address they use. Which of the answers corresponds best to the address in row "C"?
There are numerous threats to the security of a DCS. Which of the security measures below would used be to prevent unauthorized changes from an operator?
The OSI model describes how a network should be arranged. Which of the layers below concern network topologies the most?
A defined area of geographical coverage is commonly called an area network. Which of the area networks below is used for schools, small localized businesses, and shopping malls?
Which of the answers below best represents one of the recommended standards in regards to Instrumentation?
There are several stages in the alarm lifecycle. Which of these stages is there alarm shelving and some refresher training?
There are several devices that reside at each layer within the a typical DCS. Which of the levels below is where PLC and SIS controllers reside?
Which of the terms below can be best described as commands rarely seen on an average Hart device?
Digital signals are, either specific or transitory, voltage levels represent states of logic. Which of the signal encoding methods below uses voltage levels to represent logic states?
SCADA control systems are similar to other control system, but the components for a SCADA system vary slightly. Which of the components below would be designed for smaller processes, therefore having limited scalability?
Each network layer for a DCS has it's own specialized equipment or software. Which of the layers below would make use of firewall in its connection to the control network?
Modbus protocol can implement data encapsulation over IP based networks. Which of the statements below is an advantage of using encapsulation?